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        <h2>
          <span class="refentrytitle">chnsend</span>
        </h2>
        <p>chnsend — 
      Sends data via the named software bus.
    </p>
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      <div class="refsect1">
        <a id="idp94120800"></a>
        <h2>Description</h2>
        <p>
      Send to a channel of the named software bus. Implies declaring the
      channel with imode=2 (see also chn_k, chn_a, and chn_S). Note that 
      chnsend/chnrecv (which in Csound6 work identically to invalue/outvalue) 
      are usually used for the callback-based communication between Csound and 
      an external host. Use the chnset/chnget opcodes for sending and receiving 
      data inside Csound.
    </p>
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      <div class="refsect1">
        <a id="idp94193248"></a>
        <h2>Syntax</h2>
        <pre class="synopsis"><span class="command"><strong>chnsend</strong></span> ival, Sname</pre>
        <pre class="synopsis"><span class="command"><strong>chnsend</strong></span> kval, Sname</pre>
        <pre class="synopsis"><span class="command"><strong>chnsend</strong></span> aval, Sname</pre>
        <pre class="synopsis"><span class="command"><strong>chnsend</strong></span> Sval, Sname</pre>
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      <div class="refsect1">
        <a id="idp94198848"></a>
        <h2>Initialization</h2>
        <p>
      <span class="emphasis"><em>Sname</em></span> -- a string that indicates which
      named channel of the software bus to send to.
    </p>
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      <div class="refsect1">
        <a id="idp94200560"></a>
        <h2>Performance</h2>
        <p>
      <span class="emphasis"><em>ival</em></span> -- the control value to write at i-time.
    </p>
        <p>
      <span class="emphasis"><em>kval</em></span> -- the control value to write at performance
      time.
    </p>
        <p>
      <span class="emphasis"><em>aval</em></span> -- the audio signal to write at performance
      time.
    </p>
        <p>
      <span class="emphasis"><em>Sval</em></span> -- the string value to write at i-time.
    </p>
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      <div class="refsect1">
        <a id="idp94204768"></a>
        <h2>Example</h2>
        <p>
      The example shows the software bus being used to write pitch
      information to a controlling program.
    </p>
        <div class="informalexample">
          <pre class="programlisting">
        <span class="ohdr">sr</span> <span class="op">=</span> 44100
        <span class="ohdr">ksmps</span> <span class="op">=</span> 100
        <span class="ohdr">nchnls</span> <span class="op">=</span> 1

        <span class="oblock">instr</span>   1
           a1    <span class="opc">in</span>
           kp,ka <span class="opc">pitchamdf</span> a1
                 <span class="opc">chnsend</span>   kp, "pitch"
        <span class="oblock">endin</span></pre>
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        <a id="idp94214432"></a>
        <h2>See Also</h2>
        <p>
      <a class="link" href="chnrecv.html" title="chnrecv"><em class="citetitle">chnrecv</em></a>,
      <a class="link" href="chnset.html" title="chnset"><em class="citetitle">chnset</em></a>,
      <a class="link" href="chnget.html" title="chnget"><em class="citetitle">chnget</em></a>
    </p>
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        <h2>Credits</h2>
        <p>
      </p>
        <table border="0" summary="Simple list" class="simplelist">
          <tr>
            <td>Author: Istvan Varga</td>
          </tr>
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            <td>2005</td>
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